Rail-clamp tie plate



Sept. 10, 1929. .Lo. GILMORE RAIL ,CLMIP TIE PLATE Filed 061;. 12, 1927m M 6 a m m 9 4 U BY g Z rrokgvzvs.

Patented Sept. 10, 1929.

UNETED STATES JAMES O. GILMORE, OF DICKERSON RUN, PENNSYLVANIA.

RAIL-CLAMP TIE PLATE.

Application filed October 12, 1927. SerialiNo. 225,821.

clamp may be effectively brought into engagement with the railirrespective of the exact size of the latter.

Another object of. the invention is the novel manner of constructing andassociating the clamp plate, and the base plate so that they may have anadjustable interlocking connection for adapting the clamp to a railjoint, suitably placed ribs enabling the clamp to have an interlockingengagement with the rail tie.

Besides the above, my invention is distinguished in the use of a pair ofcompanion plates adjustably related and having an interlockingconnection and further provided with a plurality of openings for thereception of securing elements which not only secures the clamp to atie, but positively prevents disengagement of the plates.

With these and other objects in view the invention will be betterunderstood from the following detailed description, taken in connectionwith the accompanying drawing, wherein:

Figure 1 is a top plan view,

Figure 2 is a side elevation,

Figure 3 is a bottom plan view, and

Figure 4 is a cross sectional view.

Again referring to the drawing illustrating one of the manyconstructions of my invention, it will be noted that my improved railclamp consists of two major parts hereinafter designated as a. baseplate 1 and a clamp plate 2, adjustably associated and having aninterlocking connection with each other so as to provide a rigidconnection therebetween. The base plate 1 is elongated and provided withan overhanging and transversely extending lip 3 for engagement with thebase B of the rail C. This base plate 1 is further I i provided on itsundersurface with a plurality of sharpened ribs 4 arranged at an angleto each other and preferably diverging from a central point as indicatedat 5 so that when the ribs are brought into a biting engagement with thetie, the'latter will be positively associated with the former therebypreventing relative shifting of the plate and tie, and as the clamp hasan effective clamping engagement with the rail, it will be appreciatedthat the tie, clamp and railare rigidly connected together as a unit. I

The clamp plate 2 is also provided with an overhanging lip 6 co-actingwith the lip 3 to effectively engage the base of the rail as clearlyshown in Figure 1. This plate 2 is further provided with a clove tailkeyor rib 7 'slidably arranged in a correspondingly shaped slot 8 in thebase plate. The clamp p1ate2 is of considerable width and extendstransversely of the base .plate 1. It rests upon the upper surface ofthe base plate 1 and extends inwardly and outwardly beyond the slot 8.The rib 7 is arranged between the side edges of the clamp plate 9;, andextends from one endof the clamp plate to the otherend thereof; Referring to Figure 1, it will be noted that the slot and key are arranged atan inclination relative to the rail so, that when the clamp plate isslid in a predetermined direction an effective binding engagement isbrought about between the clamp plate and the base of the rail, whereasmovement in the opposite direction enables the clamp plateto be readilydisconnected from the base. plate. For the purpose of preventingaccidental displacement of the clamp plate relative to the base plateand to produce a more effective engagement between the clamp and thetie, I have illustrated the clamp plate provided with a hole 9 aligningwith aslot 10 in the base plate forthe reception of a sccuring element,such as a spike. The base plate in addition is provided with holes 11for the reception of securing elements. The hole 9 and slot 10 arearranged inwardly of the rib 7 and slot 8, and the slot extendstransversely of the base plate 1.

In the application of the clamp to a rail, the base plate is broughtinto flat engagement with the rail tie with the lip 3 overhanging thebase of the rail. Sliding of the key into the slot brings the clampplate into proper engagement with the base of the rail and upon strikingthis clamp plate a tight effective grip can be established between theclamp plate and the baseof the rail. In the parts ust described, thedriving of a securing element through hole 9 and slot 10 effectivelysecures the clamp plate to the base plate and also to the rail. Uponpressure being brought to bear upon the rail the sharpened ribs will beforced into the railtie and because of their angular relation aneffective connection is established between the base plate and the tiewhich will positively" prevent relative displacement of the clamp andtie and as heretofore stated the clamping action between the clamp'andthe rail will positively prevent relative movements therebetween; Thusin a very inexpensive and substantial, manner I am able to bringabout avery effective engagement between the rail tie,' a rail anda clamp platefor positively preventing'relative displacement thereof.

' It is of course, to be understood that the base plate as well as theclamp plate may be 7 designed in other forms than illustrated and may beassociated in other relations and besides various other types ofsecuring elements may be used to eifectively-lock the clamp plate to thebase plate, therefore, I do not desire to be limited in protection inany manner except as set forth in the following claim.

What I claim is: v

A rail clamp tie plate comprising an elongated base plate having a railreceiving portion and provided with a transversely extending railengaging lipoverlying said portion, the greater part of thebase plateextending inwardly beyond the rail and provided with a dovetail slotextending from an inner corner of said rail receiving portion to a'point close to v' the diagonally opposite corner of said greater part, abroad fiat clamp plate resting upon said greater part and provided witha rail engaging lip overlying said rail receiving portion, and adovetail rib formed on the lower side jof the clamp plate andlenteringsaid slot and extending between diagonally opposite corners of the clampplate, the base plate being provided between the rail and slot with atransversely extending slot, and the clamp plate being provided betweenthe rail and rib with an opening registering with said slot. 7

In testimony whereof I affix'my signature.

JAMES o. GILMORE.

